package com.ita.servlet.action;

import java.io.IOException;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import com.ita.dao.UserDao;
import com.ita.dao.impl.UserDaoImpl;
import com.ita.pojo.User;

public class LoginServlet extends HttpServlet {
	private static final long serialVersionUID = 1L;

	protected void doGet(HttpServletRequest request,
			HttpServletResponse response) throws ServletException, IOException {
		doPost(request, response);
	}

	protected void doPost(HttpServletRequest request,
			HttpServletResponse response) throws ServletException, IOException {

		// boolean isError=false;
		// String errorMsg="";
		String username = request.getParameter("username");
		String password = request.getParameter("password");
		// if(username.length()>4){
		// errorMsg="username should be less than 4 length";
		// isError=true;
		// }
		// if(password.length()<5){
		// errorMsg="username should be greater than 8 length";
		// isError=true;
		// }

		UserDao userDao = new UserDaoImpl();
		User user = userDao.findUser(username, password);
		if (user == null) {
			request.setAttribute("msg", "登录失败");
			request.getRequestDispatcher("login.jsp")
					.forward(request, response);
		} else {
			HttpSession session = request.getSession();
			session.setAttribute("user", user);
			request.getRequestDispatcher("showAddGoods").forward(request, response);
		}

	}

}
